Elroy Marth & Kenneth Marth

I am Aimee Marth born 2-22-1981.My grandfather was Elroy Marth grandmother Sybil Marth.I have a uncle Kenny Who is a Marth and lives in Southern Ca.I was told I have P.K.D and the doctors say that they can tell a lot about my case if I have family history of it but I do not have communication with my father who has P.K.D as well.If you are a marth or relative of a marth can you please help me I need family history and all I know is that my grandfather died from it and many relatives have had it.Thankyou.My e-mail is princess19aimee@hotmail.com